Ultrastructural analysis of tyrosine hydroxylase-, substance P-, and calcitonin gene-related peptide-immunoreactive nerve fibers in the rat iris.

Different patterns of distribution of chemically different nerve fibers in the rat iris were studied by immunoelectron microscopy. The iris was immunostained either singly for tyrosine hydroxylase (TH), or doubly for substance P (SP) and calcitonin gene-related peptide (CGRP), or triply for TH, SP and CGRP. TH-positive fibers were distributed in the stroma… CONTINUE READING